An Amis-Auto ky package is an item that appears on the loading dock outside of Teimo's Shop once an order from the parts catalog has been paid at the shop counter. The packages come in various shapes and sizes depending on what's inside, the racing exhaust being the longest, the fiberglass hood being the widest, and the bucket seats being the overall largest.
The packages can be moved around just like any other item, and they can be opened by pressing. The cardboard wrapping will then automatically despawn after a few seconds. The packages also open automatically upon saving and reloading the game.